| Election Name: | 1870 New Hampshire gubernatorial election |
| Country: | New Hampshire |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1869 New Hampshire gubernatorial election |
| Previous Year: | 1869 |
| Next Election: | 1871 New Hampshire gubernatorial election |
| Next Year: | 1871 |
| Election Date: | 8 March 1870 |
| Nominee1: | Onslow Stearns |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 34,912 |
| Percentage1: | 50.99% |
| Nominee2: | John Bedell |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 25,023 |
| Percentage2: | 36.55% |
| Nominee3: | Samuel Flint |
| Party3: | Labor Reform Party |
| Popular Vote3: | 7,369 |
| Percentage3: | 10.76% |
| Map Size: | 245px |
| Governor | |
| Before Election: | Onslow Stearns |
| Before Party: | Republican Party (United States) |
| After Election: | Onslow Stearns |
| After Party: | Republican Party (United States) |
The 1870 New Hampshire gubernatorial election was held on 8 March 1870 in order to elect the Governor of New Hampshire. Incumbent Republican Governor Onslow Stearns won re-election against Democratic nominee John Bedell, Labor Reform Party nominee Samuel Flint and Temperance nominee Lorenzo D. Barrows.[1]
On election day, 8 March 1870, incumbent Republican Governor Onslow Stearns won re-election by a margin of 9,889 votes against his foremost opponent Democratic nominee John Bedell, thereby retaining Republican control over the office of Governor. Stearns was sworn in for his second term on 14 June 1870.[2]